A ketogenic diet is a low-carb, high-fat diet that lowers blood sugar and insulin levels. Brown said that the diet has been helpful in treating patients with epilepsy, diabetes, and cancer.

"It has been a fantastic help to my brain," Brown said. "Since I have done the diet I have absolutely just loved it. Fell in love with it."

Brown said he has also cut back on the amount of sparring he does. He also works on puzzles, and plays Sudoku and other games to maintain his brain's reaction time.

"I treat it like a muscle like any other it has to be exercised to stay strong," commented Brown. "I have kids and want to be able to speak sentences to them ... this sport is real. It isn't just fun and games and a paycheck."

Brown would not disclose when he suffered the concussion, but he said the effects woke him up to the reality of the sport. He said that he was having trouble completing sentences, revealing that on one occasion he stood up, only to fall over immediately thereafter.

"This sport is real. It isn't just fun and games and a paycheck." -- Matt Brown

Brown said he has watched his role models suffer the effects of concussions, the biggest being former boxer Meldrick Taylor, who was never the same after he fought Julio Cesar Chavez.